Phenetic assessment among   Heliotropium   L. s.l. species

Azza EL-HADIDY; Asmaa OLWEY; Salah EL-NAGGAR

Makale detayları

Phenetic assessment among Heliotropium L. s.l. species

Yazarlar:

Azza EL-HADIDY | Asmaa OLWEY | Salah EL-NAGGAR

Yayıncı:

TUBITAK

Dergi:

Turkish Journal of Botany 2018 Vol.42 Issue 6, pp.732-755

Belge Tipi:

Makale

Yayın Tarihi:

9/2018

Belge Dili:

Türkçe

Document ID (Org No.):

2000814988

Sıklık:

İki Aylık

eISSN:

1303-6106

pISSN:

1300-008X

Özet:

 

Genus   Heliotropium   L. (Boraginaceae s.l  .  ) is one of the difficult taxonomic complexes. The validity of phenetic investigations   is  often  questioned  in  contrast  to  the  modern  phylogenetic  approaches.  In  this  study,  120  different  populations  of  17    Heliotropium  taxa  were  analyzed,  using  169  macro-  and  micromorphological  characters  to  assess  the  phenetic  relationships  between  taxa.  The    macromorphology of all parts of the studied taxa (vegetative, floral, and fruit) was investigated, along with some micromorphological   characters including indumentum and anatomy. The most significant characters were calyx asymmetry, corolla color and lobe shape,   anther connation in young flowers, staminal connective tissue prolongation, shape of stigma, shape of leaf blade, petiole, and venation.   Ten different types of trichomes were recognized and organized into four general categories: a) glandular hairs; b) eglandular branched   unicellular hairs (T-shaped, 2-armed hairs); c) eglandular unbranched simple hairs; and d) eglandular unbranched pustular hairs that   usually  bear  cystolith  structures.  The  anatomy  revealed  two  patterns  of  vascularization  in  cross-sections  of  the  petioles;  the  vascular    tissue is either arranged in a complete ring or in an arc-shaped pattern. In comparison to the classic infrageneric classification of the   genus, our results were in line with the traditional sectional essence. However, numerical analyses revealed the uniqueness of section   Orthostachys  , which supports upgrading its status to a separate genus (  Euploca  ).

Makale detayları

Phenetic assessment among Heliotropium L. s.l. species

Yazarlar: Azza EL-HADIDY | Asmaa OLWEY | Salah EL-NAGGAR

Yayıncı: TUBITAK

Dergi: Turkish Journal of Botany 2018 Vol.42 Issue 6, pp.732-755

Belge Tipi: Makale

Yayın Tarihi: 9/2018

Belge Dili: Türkçe

Document ID (Org No.): 2000814988

Sıklık: İki Aylık

eISSN: 1303-6106

pISSN: 1300-008X

Sayı

Yazarlar:

Azza EL-HADIDY | Asmaa OLWEY | Salah EL-NAGGAR

Yayıncı:

TUBITAK

Dergi:

Turkish Journal of Botany 2018 Vol.42 Issue 6, pp.732-755

Belge Tipi:

Makale

Yayın Tarihi:

9/2018

Belge Dili:

Türkçe

Document ID (Org No.):

2000814988

Sıklık:

İki Aylık

eISSN:

1303-6106

pISSN:

1300-008X